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JOHN B. T. VAN PATTEN, OF SING'SING, NEW YORK.

` .38am Patent No. 78,342, ma May 26,1868.

IMPROVEMENT IN GLOBE-VALVES.

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'.ro ALL WHoM rr MAY coNoEnN:

Be it known that I, JOHN B. T. VAN PATTEN, of Sing Sing, in the county of Westchester, and State of New York, have invented a new and improved Combined Globe and Oheek-Valve; and I do hereby declare that the following is a full, clear, and exact description thereof, which will enable those skilled in the art to make and use the same, reference being had to the accompanying drawings, forming part of this specification.

This invention relates to an improvement in globe-valves, whereby they are made to operate as .check-valves as well. v

And theeinvention consists in the construction and arrangement of' parts, as hereinafter described.'

The drawing representsa vertical section of the valve, showing the construction and arrangement.

A is the shell, with the ordinary interior valve-seat, as seen at B.

Gis the valve, and

D is the valve-stem, which extends above and below the vulve, as seen.

E is the hollow spindle, which passes down through the cap-piece Foi' thc shell, which cap-piece forms a nut for the screw on the spindle.

Gr is a stuiing-box on the eap-piecc F.

H is the hand-wheel on the spindle.

At the base of the shell, there is a bottom-piece, which screws into the shell, marked I, which has a neck or tubular projection to receive the lower portion of the valve-stein D, as seen at J The upper portion of the stem enters` the hollow spindle, as seen at K.

The bottom-piece is removable at pleasure, for the purpose of cleaning out the shell.

This feature is of great importance. As valves are'usually constructed, itis necessary to detach the pipes i'or cleaning the valves when they get clogged.

It will be seen lthat the `vaive is guided to its seat by its stem acting in the tubular spindle and bottompiece I of the shell.

It will also be seen that by screwing down the spindle E, the valve will be closed, as in the ordinary glohe valve, should the pressure be on its under side. I

When the spindle is raised, as represented in the drawing, and the valve left free, it acts as a check-Valve, as pressure on its upper side will close it.

When water is forced through the valve, in the direction of the arrow, the back pressure will close the valve as the forward pressure ceases.

Having thus described my invention, I claim as new, and desire to secure by Letters Patentrlhe construction of valve C and hollow spindle K, and their arrangement with reference to wheel H and spindle E, substantially as described and set forth.

JOHN B. T. VAN PATTEN.

Witnesses:

Guo.. WILLIAMSON, J. W. SEE. 

